2TH Ch3 REFRESH and §3.1

• Wiskunde
• Middelbare school
• havo, vwo
• Leerjaar 2

Ch 3 SIMILARITY

What is this?

Write your first idea that comes up when you see the word

'similarity' in the next slide!

'similarity' makes me think of ....

The triangles 

on the right 

are SIMILAR

This gives you an

idea of similarity.

A recap:

- open your Notebook on a new page

- write down 'Ch 3 Similarity' on top

- write down what you still know about ANGLES

- think of types of angles, sizes of angles,

   angles in triangles and quadrilaterals, calculations, etcetera! 

- KEEP YOUR TEXTBOOK CLOSED NOW !

A recap:

Compare with your neighbour what you remember about angles.

Add what your neighbour wrote down and you didn't.

In a few minutes we will share this with the class. 

Let's share some results with all of us.

After you worked on this, let me show you what the theory has to offer us on ANGLES!

Pay attention carefully!

Let's do R5 together!

Open your Textbook on p.124/125

Get your:

- geo

- pencil

from your pencilcase.

Fill in your answers in your Notebook but also in the next slide!

Angle P2 = ....
Angle T1 = ....
Angle P1 =
Area = ......

Compare your answers to the ones below!

An

Angle P2 = 14 degrees

Angle T1 = 28 degrees

Angle P1 = 76 degrees

3.1 Enlargements

Homework time

Ch3/3.1 Exercises R6 and R7 and Exercise 1, S3, S6 (page 97-98)

+ Check your answers with the Solutionsbook, using another colour pen.